What is the shelf life of the product?

The shelf life is 24 months. It should be kept away from strong light and heat.

Anti-Oxidant 99% Pure Pterostilbene Trans-Pterostilbene Powder CAS 537-42-8

Name: Anti-Oxidant 99% Pure Pterostilbene Trans-Pterostilbene Powder CAS 537-42-8
Brand: Nanjing NutriHerb BioTech Co., Ltd.
SKU: 1958394921

Jiangsu, ChinaNanjing NutriHerb BioTech Co., Ltd.

US$100.00-350.00

1 kg

Sample price:US$0.00/kg.Request sample

Product profile

Customization

Available

Certification

ISO, FDA

Assay Method

HPLC, UV

Model NO.

0208

Application Form

Tablet, Capsule

Application

Food, Health Care Products

State

Powder

Extract Source

Pine Bark

Color

White

Centifiaction

ISO COA MSDS

Appearance

Powder

Active Ingredient

Pterostilbene

Transport Package

Bottle, Drum, Vacuum Packed

Specification

1kg/bag 25kg/drum

Trademark

Nutriherb

Origin

China

Production Capacity

1000kg

Key features

Certified Quality: ISO and FDA certified with COA and MSDS documentation available.

Custom OEM/ODM: OEM and ODM services are available for customized packaging and solutions.

Free Sample Offer: Free samples are provided for quality confirmation (shipping cost on buyer).

Natural Source: Extracted from Pine Bark with a stable cultivation base for 100% natural material.

Fast Delivery: Shipping time is 15 working days after payment confirmation.

Long Shelf Life: Product has a shelf life of 24 months when stored away from light and heat.

Quality Guarantee: Strict QC/QA testing with a no-excuse return policy for quality issues.

Company profile

Nanjing NutriHerb BioTech Co., Ltd.

Jiangsu, China

Business Type: Manufacturer/FactoryAverage Response Time: ≤1.93h

AI-Powered supplier vetting

SummaryNanjing NutriHerb BioTech Co., Ltd. is identified across the records as a China-based limited company operating in plant extracts, pharmaceutical intermediates, cosmetics, agriculture, food, and related trading activities. The supplier has documented procedures and records for corrective/preventive actions and customer complaints, and holds an ISO9001:2015 certificate. Production information lists capacities for four products, with 11–20 quality-control staff and 6–10 years of combined R&D-engineer experience. However, the records state that no SDK is available, no new products were launched in the past year, quality assurance and traceability statuses are unknown, and quality-control test equipment is recorded as zero. Financial records provide years rather than assessable financial results, so financial credibility cannot be judged. No customer cases are provided.

Supplier typeThe supplier is recorded as a China-based limited company, with records describing it both as a trading company and as a manufacturer/factory. Its stated activities cover plant extracts, pharmaceutical intermediates, biotechnology R&D, cosmetics, daily necessities, and import/export business.

CertificationsThe supplier holds an ISO9001:2015 certificate. A BV audit record is also provided, with a report period from 2025-01-08 to 2026-01-07, although the recorded audit evaluation result is 0 and no interpretation of that result is supplied.

After-Sales capabilityThe supplier has clear procedures and followed records for corrective and preventive actions and for handling customer complaints. This provides explicit evidence of documented service-response processes.

R&D capabilityThe company focuses on innovation in herbal extracts and reports 6–10 years of total R&D-engineer experience. However, it has no available SDK and launched no new products in the past year, indicating limitations in the specifically recorded innovation outputs and technical-support offering.

Customization capabilityThe supplier explicitly reports a design-services capability limited to minor customization. This confirms some customization availability but does not evidence broad or advanced customization capability.

Product Q&A

Q:How to confirm the Product Quality before placing orders?

By sending you our available samples. Or if you have special requirement on the goods, we can prepare samples according to your requirement for your confirmation.

Q:Can you supply free samples?

Yes, we can provide some free sample, but the shipping cost should be on the customers' account. You can either pay the shipping cost or arrange a courier to collect the samples.

Q:What's the MOQ?

For the high value product, our MOQ starts from 1g and generally starts from 10g. For other low value product, our MOQ starts from 100g and 1kg.

Q:How to place order and make payment?

You can send our your Purchase order(if your company has), or just send a simple confirmation by email or by TradeManager, and we will send you Proforma Invoice with our bank details for your confirmation, then you can make payment accordingly.

Q:How do you treat quality complaint?

All our products are strictly tested by our QC, and confirmed by QA; unqualified material will not be released to customer. In case any quality problem is confirmed to be caused by us, we will replace the goods or refund your payment